数字调频式无线电近炸引信设计

调频式无线电近炸引信具有原理简单、易于实现的优点,采用数字设计方法克服了模拟方法中参数更改困难的弱点,具有良好工程性。根据无线电近炸引信的高可靠和抗干扰能力要求,提出采用"20判7"的判决算法和伪码调制的终端方案。工程验证表明,设计的数字引信具有高探测概率、低虚警概率和强抗干扰能力。

Design of a Digital FM Radio Proximity Fuze

The frequency modulation(FM) radio proximity fuze has the characteristics of simple principle and easy realization.Using digital design,it overcomes the difficulty and weakness of parameter changing in analog design,and has the good practicability.According to the requirements of high reliability and anti-jamming capability for proximity fuze,the PN code modulator scheme and the selecting 7 in 20 decision algorithm are proposed.The project application shows that the digital proximity fuze has high detecting probability,low false and failure probability and better anti-jamming ability.